Patents by Inventor Jacob T. Nagelhout

Jacob T. Nagelhout has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Communication system
    Patent number: 4837823
    Abstract: A frequency hopping communication system whose transmitters and receivers after synchronization hop over a frequency series of a first type. To synchronize the transmitters and receivers, sync data from a transmitter are transmitted and received in portions spread over a frequency series of a second type in order to protect the transmission of sync data against jamming and eavesdropping.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: June 6, 1989
    Assignee: Hollandse Signaalapparaten B.V.
    Inventors: Wilhelmus J. Ham, Jacob T. Nagelhout